This project demonstrates how to handle user input in Java using the Scanner class to read and display a password from the keyboard.

• Initialize the Scanner object for reading from System.in.
• Read exactly one line of text using the nextLine() method.
• Store the input in a String variable.
• Print the entered password to the console for confirmation.

• Language: Java 23 (Current version).
• IDE: IntelliJ IDEA.
• Concepts: Standard Input (System.in), Scanner class, String Handling.

This task introduces the Scanner utility, which acts as a bridge between the user's keyboard and the program. By using nextLine(), we ensure that the entire sequence of characters (including spaces) is captured until the user presses Enter.

1. Interactivity: It allows the program to process dynamic data provided at runtime instead of hardcoded values.
2. Standard Practice: Using Scanner with System.in is the fundamental way to build console applications in Java.
3. Robustness: nextLine() is safer than next() because it reads the full line, preventing issues with trailing newline characters in more complex input scenarios.

Enter your password: 
qwerty123
Your password is: qwerty123

package com.yurii.pavlenko;

import java.util.Scanner;

/**
 * Task 20: Simple Login Input.
 * Demonstrates reading user input from the console using the Scanner class.
 */
public class Task_20_App {
    public static void main(String[] args) {
        // 1. Create a Scanner object to read input from the keyboard (System.in)
        Scanner scanner = new Scanner(System.in);

        // 2. Prompt the user to enter a single line as a password
        // and read the input into the password variable.
        System.out.println("Enter your password:");
        String password = scanner.nextLine();

        // 3. Output the entered password to the screen
        System.out.println("Your password is: ");
        System.out.println(password);

        // 4. Close the scanner to free up system resources.
        scanner.close();
    }
}

This project is licensed under the MIT License.

Copyright (c) 2026 Yurii Pavlenko

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files...

License: MIT